Dude, your first post, you said WP118.
Then you went back in and change it to read that you use the WP118 on your LT1 and
WP119 on your LS92. Now I don't know what a LS92 is, but I know what a L92 is.
And good for you and your LS92 Super Stocker.

In most drag race only applications the WP119 will work fine. The WP119HD would help to cool the engine faster between rounds because it flows more water. But there is a trade off, The HD weights(1 pound) more and will draw a few more amps.